That marks the second straight monthly drop in watch exports to the US, after shipments surged in July as producers rushed to build up inventory ahead of the anticipated tariff.
Richemont and Swatch Group, as well as independent watchmakers including Audemars Piguet, Patek Philippe and Rolex, have been affected by the US levy, the highest in the developed world.
Leaving aside the US, Swiss watch exports would have grown by 7.8% last month, according to the statement.
Steel watches led the decline, with a decrease in value of 3.8%. Timepieces sold for more than 3,000 francs fell, alongside those sold for less than 500 francs. Mid-priced watches saw a 4.2% increase in exports in September.
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Overall, Switzerland’s exports to the US rebounded in September, suggesting demand for its goods is so far withstanding the impact of US President Donald Trump’s tariffs.
The Swiss government continues to pursue talks with Washington to secure a lower tariff, though its prospects of success are shrouded in doubt.
While Commerce Secretary Howard Lutnick said last month that the US will “probably get a deal done with Switzerland”, there’s been little hint of progress since.
